5 Inventors With Mysterious Inventions Who Strangely Disappeared

Mysterious disappearances often involve individuals whose work defies convention. The perplexing case of Dr. Ning Li, whose groundbreaking research on anti-gravity beguiled and confounded her peers, is one such story. Dr. Ning Li emigrated from China to the United States in 1983, joining the Center for Space Plasma and Aeronomic Research at the University of Alabama. In the early '90s, her pioneering papers on anti-gravity were met with skepticism, dismissed by many as fanciful science fiction. Still, Li's theoretical work proposed a specific, practical method for generating an anti-gravity field, a concept that promised transformative applications. In 1999, Li left academia to found her own company, AC Gravity. To further her research, she secured a significant grant from the Department of Defense, nearly half a million dollars. This pivotal moment marked the beginning of a series of strange and troubling events in her life. Despite the promising start, AC Gravity never p